Compilare: main.cpp: In function 'int main()': main.cpp:75:35: warning: format '%c' expects argument of type 'char*', but argument 2 has type 'int*' [-Wformat=] scanf("%c " , &v[i][j]); ^ main.cpp:69:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.in" , "r" , stdin); ^ main.cpp:70:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("barbar.out" , "w" , stdout); ^ main.cpp:71:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d ", &n , &m); ^ main.cpp:75:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%c " , &v[i][j]); ^